Medica.

[Twilite]

Medica is one of WHM's staple healing skills. 300 Potency isn't bad for healing up your party after a 3k hit(and adding in DS with anything makes it 30% more efficient, especially HoTs). Not to mention, Assize = Medica in Potency and restores 10% of your max MP, so don't be afraid to use it if your MP's looking around the 75% mark and you don't need to use SoS.

As for spamming Cure IIs...please no. Cures do the job just fine(plus the proc saves double the MP cost of Cure). If you need to, throw a Tetragrammaton on a single target that's rather low. Just don't use DS with it because it's still not effected by the healing potency bonus from it.

I. Am. Not. 60. Yet.

Cure 1 is 1.6k. Cure II is 2.4. Medica is 1.2k. Medica II is about 900.

I'm not wearing the awesome gear yet.